Discover the properties of thermoset glass, how it differs from other types and also the manufacturing process.
Thermoset or semi-tempered glass is one that has undergone a heat treatment to improve its performance. Better thermal and mechanical resistance is achieved.
Characteristics of THERMOSET GLASS
If you can significantly improve the mechanical and thermal resistance of glass. It is assumed that more than double the glass used.
However, it is inferior in quality to tempered for several reasons:
- It has less resistance.
- In case of breakage, the parts get bigger and can cause damage. Therefore, are not considered security. For uses where regulations must be complied with, tempering should be used.
- It is capable of withstanding temperatures of 100 degrees (the temperate of up to 200 degrees).
It is usually used for the manufacture of laminated safety glass. These are essentially several glasses joined together using an intermediate film. In the event of breakage, this intermediate layer holds the glass pieces that make up the laminated glass together.
It is also required in applications that do not require the plus of safety, but rather greater resistance. For example, in places with abundant wind, there are significant fluctuations in temperature …
How thermoset glass is made
The process consists of reheating the glass to 700 degrees, in ovens prepared for it. They are shaped and can cool. In the case of thermoset glass, the cooling is slow, while to temper, the blown air is applied to accelerate the process.
As the cooling is slower, there is less tension in the glass and therefore less breakage than in the manufacture of tempered glass.
It must be taken into account that many modifications or machining operations, such as grooves, edges or cuts, must be made beforehand. The thermoset process.
If specially designed paint was added during the process, we would be talking about thermoset enamelled glass. Or heat up if the cooling has been accelerated.
One of the limitations of the process is that it can only be applied to glass with a thickness equal to or greater than 10 millimeters.